Strep-tag II and Twin-Strep Based Cassettes for Protein Tagging by Homologous Recombination and Characterization of Endogenous Macromolecular Assemblies in Saccharomyces cerevisiae

2014 ◽  
Vol 56 (11) ◽  
pp. 992-1003 ◽  
Author(s):  
Jay Rai ◽  
J. Kalyani Pemmasani ◽  
Andriy Voronovsky ◽  
Ida S. Jensen ◽  
Arulmani Manavalan ◽  
...  
2009 ◽  
Vol 20 (4) ◽  
pp. 1241-1251 ◽  
Author(s):  
Ling Xiong ◽  
Xiaole L. Chen ◽  
Hannah R. Silver ◽  
Noreen T. Ahmed ◽  
Erica S. Johnson

Many Saccharomyces cerevisiae mutants defective in the SUMO pathway accumulate elevated levels of the native 2 μm circle plasmid (2 μm). Here we show that accumulation of 2 μm in the SUMO pathway mutants siz1Δ siz2Δ, slx5Δ, and slx8Δ is associated with formation of an aberrant high-molecular-weight (HMW) form of 2 μm. Characterization of this species from siz1Δ siz2Δ showed that it contains tandem copies of the 2 μm sequence as well as single-stranded DNA. Accumulation of this species requires both the 2 μm–encoded Flp recombinase and the cellular homologous recombination repair (HRR) pathway. Importantly, reduced SUMO attachment to Flp is sufficient to induce formation of this species. Our data suggest a model in which Flp that cannot be sumoylated causes DNA damage, whose repair via HRR produces an intermediate that generates tandem copies of the 2 μm sequence. This intermediate may be a rolling circle formed via break-induced replication (BIR), because mutants defective in BIR contain reduced levels of the HMW form. This work also illustrates the importance of using cir° strains when studying mutants that affect the yeast SUMO pathway, to avoid confusing direct functions of the SUMO pathway with secondary effects of 2 μm amplification.


2018 ◽  
Vol 39 (4) ◽  
pp. 474-482
Author(s):  
Hoang Thi Le Thuong ◽  
Nguyen Quang Hao ◽  
Tran Thi Thuy

Eight yeast strains (denoted as D1 to D8) were isolated from samples of natural fermented pineapple. Strain D8 showed highest alcoholic production at low pH and special aroma of pineapple has been chosen for further study. Taxonomic characterization of strain D8 using morphological, biochemical and molecular biological studies confirmed that strain D8  belong to Saccharomycetaceae family, Saccharomycetales order and Saccharomyces cerevisiae species. Therefore, we named this strain as Saccharomyces cerevisiae D8 for further study on Brandy production from pineapple. Citation: Hoang Thi Le Thuong, Nguyen Quang Hao, Tran Thi Thuy, 2017. Taxonomic characterization and identification of Saccharomyces cerevisiae D8 for brandy production from pineapple. Tap chi Sinh hoc, 39(4): 474- 482. DOI: 10.15625/0866-7160/v39n4.10864.*Corresponding author: [email protected] Received 5 December 2016, accepted 12 August 2017


1978 ◽  
Vol 525 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Shigeru Taketani ◽  
Takashi Osumi ◽  
Hirohiko Katsuki

1994 ◽  
Vol 269 (33) ◽  
pp. 20931-20937
Author(s):  
F.J. Lee ◽  
L.A. Stevens ◽  
Y.L. Kao ◽  
J. Moss ◽  
M. Vaughan

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